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Muskaan P.

Tutor for 5 years

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Pre-Algebra

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Question:

Solve: x-7=2

Muskaan P.

Answer:

for this you would isolate the variable, x. hence x-7=2 +7=+7 ----------- x=9

Basic Math

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Question:

Round 3.864 to the nearest tenth.

Muskaan P.

Answer:

the tenths place falls to the right of the decimal sign. In this case, the 8 would be to the tenths. when rounding, we look at the number one place to the right to the tenths (6) and if the number is 4 or less then we round down, if its 5 or more we round up. the number next to the tenth is 6 so we would round the 8 up by 1 and make it a 9. the answer would come to 3.9

Algebra

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Question:

Evaluate: 30 - 12÷3×2 =

Muskaan P.

Answer:

Here we would use the method of PEMDAS: parenthesis, exponents, multiplication and division (in the order it appears), addition and subtraction (in the order it appears). We see a subtraction then division and then multiplication. but we would solve the division first, multiplication second, and subtraction last. Division: 30-4x2= multiplication: 30-8= subtraction: 22

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